Here is the full list of all 35 Microtransaction Simulator achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Mania
A small loan of 1 million dollars
Some people graduate but they still stupid
Unrelated
...
Past the point of no return
Open 100 packs
Open 50 packs
You dug a hole
Lucid once
Old habits die hard
Yum
yeah
Get a turquoise
Take a look at me now
Get a fuzz
Get a red
Get a green
2017
Get a purple
Sometimes there is a free lunch.
Get a white
Get a brown
Get a blue
It's a secret to everybody
Harder than it looks
Is this a bug?
This can't be a mistake
Don't even try it
literally idle the game for 4 hours. Stay at home and don't spread the coronavirus.